One of the major headaches that I face shooting video with my Canon EOS 1D Mark IV is that I can't use a wired remote to start and stop video. So I have to be in arms length to click video. This problem has been solved with the new Canon EOS 1D X. The Canon EOS 1D X can start and stop video shooting using a Canon RS - 80N3 remote. That is really cool. Canon seems to be putting lot of thought. If Canon had given 1080p at 60fps, then it would have been really awesome.